期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 10, 期 2, 页码 628-640出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ee02974d
关键词
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资金
- Ministry of Science, ICT and Future Planning through the National Research Foundation of Korea [2009-0093886]
- Korea Center for Artificial Photosynthesis, at Sogang University
- National Research Foundation of Korea [2016M1A2A2947946, 22A20130012547] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Metal oxide based solar thermal water splitting is a promising approach for using solar energy to produce H-2 and O-2. The normal protocol employed for this process involves thermal reduction of a metal oxide (MOx) at around 1500 degrees C to produce the reduced form of the metal oxide (MOx -delta d) and O-2. This step is followed by steam treatment of MOx delta d at around 1000 degrees C to yield MOx and H-2. Owing to the need to use high temperatures, the traditional approach has several important drawbacks. In a study designed to improve this process, we found that Cu-loaded TiO2 (Cu/TiO2) effectively expels O-2 upon irradiation with AM 1.5 1 Sun solar simulated light and that treatment of the reduced form of the reduction product Cu/TiO2-delta with steam at 140 degrees C generates H-2. This new approach, termed as solar photochemical-thermal water splitting, has the potential to become an important method for converting solar energy into chemical energy.
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